My PS3 died after the ps4 launched so I bought a new cheap super slim probably in like 2016. I'd only use it maybe for 1 game every 3 months on average since then and I've just the one controller.
It always lasts the full day and hasn't deteriorated.
I still have jak 3, God of war 3, GTA IV, hogs of war, ratchet 1-3 and a few PS2 classics to play so that'll be another few years worth at the rate I play it. Hopefully no issues occur!